What’s Vulnerable › Vulnerabilities

CVE-2015-8550

• Severity: high (CVSS 8.2 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2016-04-14 · updated 2026-06-17
• Weakness: CWE-284

Description

Xen, when used on a system providing PV backends, allows local guest OS administrators to cause a denial of service (host OS crash) or gain privileges by writing to memory shared between the frontend and backend, aka a double fetch vulnerability.

Affected products

• Novell Suse Linux Enterprise Real Time Extension: 12-sp1
• xen: all versions

References

• http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html
• http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html
• http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html
• http://www.debian.org/security/2016/dsa-3434
• http://www.debian.org/security/2016/dsa-3471
• http://www.debian.org/security/2016/dsa-3519
• http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
• http://www.securityfocus.com/bid/79592
• http://www.securitytracker.com/id/1034479
• http://xenbits.xen.org/xsa/advisory-155.html
• https://security.gentoo.org/glsa/201604-03
• http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html

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